双髻鲨

1987年一群观测双髻鲨（Hammerhead）的潜水者发现了与那国岛海底地形，此后立即引起了日本学界激烈的讨论。

It was discovered in 1987 by a group of divers who were there to observe Hammerhead sharks , and it immediately sparked a huge amount of debate in the Japanese scientific community .

如果事情遂了谷歌（Google）的心愿，那么双髻鲨就可以在你的办公室里游动，大象可以站在你的手心里，龙也会和群鸟一起飞翔。

If Google has its way , hammerhead sharks will swim through your office , elephants will fit in the palm of your hand and dragons will fly among the birds .

双髻鲨家族是一个好的例子。

The hammerhead shark family is a good example .

比起尖鼻子的鲨鱼来说，双髻鲨的鼻孔相距比较宽。

BOB DOUGHTY : Hammerhead sharks have nostrils that are more widely spaced than those of sharks with pointed noses .

紫外线不仅能将沙滩上的游客晒成古铜色，还能将水下的双髻鲨染成棕色。

Ultraviolet rays don 't just bronze sunseekers on the beach . Underwater , they can give hammerhead sharks a suntan .

当双髻鲨游到气味的云层里的时候，他们通常不是直着游泳。而是，他们的身体有一个角度。

When hammerheads swim into clouds of odor , they usually do not swim straight on . Instead , their bodies are on an angle .

得到至少三分之二批准的这5个物种是远洋白鳍鲨，双髻鲨，大双髻鲨、平双髻鲨和鼠鲨。

The five species that received at least two-thirds approval are the Oceanic Whitetip , Scalloped Hammerhead , Great Hammerhead , Smooth Hammerhead and Porbeagle .

一些种类的鲨鱼数量已减少了70%，少数几个种类的数量减少了90%，例如平双髻鲨、牛鲨和虎鲨。

Some species of shark have been depleted by70 per cent and a few , such as smooth hammerhead , bull sharks and tiger sharks , by90 per cent or more .